Musnad Ahmad 31:219

Yahya narrated to us, from Shu'bah, from al-Hakam, from Abu Salih Dhakwan al-Samman, from Abu Sa'id: That the Messenger of Allah (ﷺ) came to the house of a man from the Ansar, and he came out while his head was dripping. He said: "Perhaps we have hurried you." He said: "If you have hurried—or if you have been pressed for time—then there is no ghusl (full ritual bath) upon you."